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Vulnerability IntelligenceCVE-2026-4901

CVE-2026-4901

MEDIUM6.9

Insertion of Sesitive Information into Log File in Hydrosystem Control System

Published Apr 9, 2026

Modified 2 weeks ago

Details

Hydrosystem Control System saves sensitive information into a log file. Critically, user credentials are logged allowing the attacker to obtain further authorized access into the system. Combined with vulnerability CVE-2026-34184, these sensitive information could be accessed by an unauthorized user.This issue was fixed in Hydrosystem Control System version 9.8.5

References

https://cert.pl/posts/2026/04/CVE-2026-4901/

https://www.cve.org/CVERecord?id=CVE-2026-4901

https://www.hydrosystem.poznan.pl/

CVSS Analysis

CVSS v4.0

6.9

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Attack Requirements

NoneAT:N

Privileges Required

HighPR:H

User Interaction

NoneUI:N

Vulnerable System

Vuln. Confidentiality

HighVC:H

Vuln. Integrity

NoneVI:N

Vuln. Availability

NoneVA:N

Subsequent System

Subseq. Confidentiality

NoneSC:N

Subseq. Integrity

NoneSI:N

Subseq. Availability

NoneSA:N

6.9/CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Weakness Type (CWE)

Information Disclosure

Log File Info Leak

Ecosystems

Timeline

PublishedApr 9, 2026

ModifiedApr 9, 2026

CVE-2026-4901 | Mondoo Vulnerability Intelligence